CN100367635C - Motor with coder - Google Patents
Motor with coder Download PDFInfo
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- CN100367635C CN100367635C CNB2004100048651A CN200410004865A CN100367635C CN 100367635 C CN100367635 C CN 100367635C CN B2004100048651 A CNB2004100048651 A CN B2004100048651A CN 200410004865 A CN200410004865 A CN 200410004865A CN 100367635 C CN100367635 C CN 100367635C
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/22—Optical devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/40—Structural association with grounding devices
Abstract
An assembly of electric motor with encoder, including an electric motor having a motor housing, and an encoder for detecting the rotation angle of the output shaft of the electric motor. The encoder includes a frame member attached to the motor housing in a conductive manner, a circuit board supported on the frame member and a detection circuit provided in the circuit board. The assembly of electric motor with encoder further includes an output signal cable connected to the circuit board of the encoder and including a signal wire and a shield member, and a grounding mechanism electrically connecting the shield member of the output signal cable to the motor housing for grounding purposes. The grounding mechanism includes a conductor patterned on the circuit board, a first connecting structure mutually connecting the conductor to the shield member, and a second connecting structure mutually connecting the conductor to the frame member. The second connecting structure includes a through-hole plating provided in the circuit board to be connected to the conductor, and a fastening element inserted into a through hole having the through-hole plating and securing the circuit board onto the frame member. When the fastening member is fastened, the through-hole plating comes into conductive contact with the frame member.
Description
Technical field
The present invention relates generally to a kind of motor, relate more specifically to a kind of electric motor assembly that has encoder, above-mentioned electric motor assembly comprises a bonding device that offers a cable, and above-mentioned cable has the holding wire and the shield member that is used for shielded signal wire that are used for the output coder detection signal.
Background technology
In motor, encoder is used for the detection position data, and the anglec of rotation of motor reel has for example recently developed so that had the more detectability of pinpoint accuracy and resolution, therefore, be necessary to reduce fully The noise in the encoder output.Usually, in order to reduce the purpose of noise effect, the cable (being written as output signal cable hereinafter) with the holding wire that is used for the output coder detection signal provides one to have linear, shield member network or film shape therein.For the ground connection purpose, the above-mentioned shield member that provides in above-mentioned output signal cable normally is electrically connected to the shell of above-mentioned motor.
Japan's uncensored patent announcement (Kokai) 2002-354756 number (JP2002-354756A) discloses a kind of motor that has encoder, and the output signal cable that it is characterized by above-mentioned encoder is connected to connector for substrate on the above-mentioned encoder circuit plate by a cable connector with earth lead.A shield member that is included in the above-mentioned output signal cable is connected on the shell of motor by the mutual splicing ear of cable and connector for substrate, a model conductor on the circuit board and the earth lead of above-mentioned cable connector.Above-mentioned earth lead passes through the shell of a screw to above-mentioned motor at its end, and therefore above-mentioned shield member is electrical ground.
Disclose a kind of motor that has encoder in Japan's uncensored patent announcement (Kokai) 2002-101605 number (JP2002-101605A), the output signal cable that it is characterized by above-mentioned encoder is passed through the hub being mounted of a conductivity on the shell of above-mentioned motor.A shield member that is included in the above-mentioned output signal cable partly comes out by removing cable sheath, and the sleeve by fixing above-mentioned conduction is electrically connected to the shell of above-mentioned motor to reach the purpose of ground connection to the part of exposing of above-mentioned shield member and to the shell of above-mentioned motor.
Disclose a kind of motor that has encoder in Japan's uncensored patent announcement (Kokai) 10-239101 number (JP10-239101A), a shield member that wherein has in the lead of above-mentioned motor is connected on the shell of an encoder.By with screw the end of the above-mentioned shielded conductor that extends from above-mentioned lead being fixed to the shell of above-mentioned encoder, the shield member of above-mentioned lead is electrically connected to the shell of above-mentioned encoder to reach the purpose of ground connection.
Summary of the invention
The objective of the invention is for the output signal cable of using in having the motor of encoder provides a kind of improved bonding device, so that make the easier and reduction operating cost of the attended operation of output signal cable.
To achieve these goals, the invention provides a kind of electric motor assembly that has encoder, comprising: a motor casing; An encoder, the mode with a kind of conduction of comprising are attached to framing component on the motor casing, one by framing component circuit supported plate and a testing circuit that is arranged in the foregoing circuit plate; An output signal cable that is connected to above-mentioned encoder circuit plate and comprises a holding wire and a shield member; With with the shield member that is electrically connected above-mentioned signal output cable to the shell of above-mentioned motor to reach an earthing mechanism of ground connection purpose; Wherein above-mentioned earthing mechanism comprises a conductor that is patterned on the circuit board, and first syndeton that reciprocally connects above-mentioned conductor and above-mentioned shield member is with second syndeton that reciprocally is connected above-mentioned conductor and said frame member.
In the above-mentioned electric motor assembly that has encoder, above-mentioned first syndeton can comprise first connector that is connected to the conductor of above-mentioned testing circuit and foregoing circuit plate, with second connector that is connected to the shield member of above-mentioned holding wire and above-mentioned output signal cable, above-mentioned first connector and above-mentioned second connector can intercouple.
In said apparatus, above-mentioned first connector can be a connector for substrate that is fixed on the foregoing circuit plate.
And above-mentioned first connector can comprise that first conductive shell and above-mentioned second connector that is connected to above-mentioned conductor can comprise second conductive shell that is connected to above-mentioned shield member, and above-mentioned second conductive shell and above-mentioned first conductive shell can be coupled.
In said apparatus, above-mentioned first connector can be an aerial lug that is attached to the encoder shell of a potted circuit plate.
Further, above-mentioned second syndeton can comprise a via metal coating that is used to connect above-mentioned conductor in the foregoing circuit plate, and above-mentioned via metal coating and said frame member form and electrically contact.
In said apparatus, above-mentioned second syndeton can comprise further that one is inserted in the through hole with via metal coating and circuit board is fastened on retaining element on the framing component.
Perhaps, above-mentioned second syndeton can comprise that being used on circuit board is connected to the face of above-mentioned conductor and the Connection Element that is electrically connected above-mentioned to the said frame member.
In said apparatus, above-mentioned Connection Element can comprise that is fastened to the foregoing circuit plate on the said frame member simultaneously a conduction retaining element that electrically contacts with above-mentioned formation.
And, second syndeton can comprise one with the conduction tightening member that circuit board is fixed to when this conductor conduction contacts on this framing component.
Perhaps, above-mentioned second syndeton can comprise one under the condition that above-mentioned conductor and said frame parts electrically contact, the retaining element of fastening foregoing circuit plate to the framing component.
Brief description of drawings
It is more obvious that above and other objects of the present invention, feature and advantage will become from the description below in conjunction with the specific embodiment of accompanying drawing, wherein:
Fig. 1 is the schematic diagram according to an embodiment of the electric motor assembly that has an encoder of the present invention;
Fig. 2 is the typical schematic diagram of the test section of the electric motor assembly that has encoder as shown in fig. 1;
Fig. 3 A is the schematic plan view of the earthing mechanism of the electric motor assembly that has encoder as shown in fig. 1;
Fig. 3 B is the schematic cross section view of the earthing mechanism as shown in Fig. 3 A;
Fig. 4 A is the plan view of amplification of second syndeton of the earthing mechanism as shown in Fig. 3 A;
Fig. 4 B is the cross section view of the amplification of second syndeton as shown in Fig. 4 A;
Fig. 5 A is the plan view according to the amplification of second syndeton of the earthing mechanism of another embodiment;
Fig. 5 B is the cross section view of the amplification of second syndeton as shown in Fig. 5 A;
Fig. 6 A is the plan view according to the amplification of second syndeton of the earthing mechanism of further embodiment;
Fig. 6 B is the cross section view of the amplification of second syndeton as shown in Fig. 6 A;
Fig. 7 A also is the front view according to the amplification of the part of first syndeton of the earthing mechanism of further embodiment;
Fig. 7 B is the schematic explanation of the integral body of first syndeton shown in Fig. 5 A;
Fig. 8 A is the view of the cross section of an output signal cable, as an example, can use in the electric motor assembly that has encoder as shown in fig. 1; With
Fig. 8 B is the cross section view longitudinally of the output signal cable shown in Fig. 8 A.
Detailed explanation
Embodiments of the invention are described in detail below with reference to accompanying drawing.In the accompanying drawings, same or analogous building block adopts identical Reference numeral to represent.
With reference to above-mentioned accompanying drawing, according to one embodiment of the present of invention, the electric motor assembly that has encoder 10 that Fig. 1 schematically shows.The above-mentioned electric motor assembly 10 that has encoder comprises that a motor 14 with motor casing 12 and one are used to detect the encoder 18 of the anglec of rotation of the output shaft 16 of motor 14.A testing circuit 24 (Fig. 2) that is supported on the circuit board 22 on the said frame member 20 and provides in a foregoing circuit plate 22 attached to 20, one of the framing components on the motor casing 12 with electric connection mode is provided above-mentioned encoder 18.The encoder 18 that has the foregoing circuit plate 22 that is covered by encoder lid 26 is installed in the terminal area at motor casing 12 rear portions.
As among Fig. 2 typically shown in, the testing circuit 24 of above-mentioned encoder 18 comprises a light receiving element 28, photodiode for example, and match attached to the slit disk 30 on the output shaft 16 of above-mentioned motor 14 with one, be oppositely arranged with above-mentioned light receiving element 28 one fixing dull and stereotyped 34 and photocells 32 in slit, above-mentioned disk 30 is between light receiving element 28 and the fixing slit flat board 34, has so just constituted the detection part 36 of an optics of above-mentioned encoder 18.Should be noted that the present invention does not limit the said structure of the test section of above-mentioned encoder, but also can take the test section of multiple structure, for example magnetic or other optical type.Equally, the present invention not only can be applied in the turning motor that has rotary encoder among as shown in the figure the embodiment, and can be applied in linear motor that linear encoder combines in.
Referring again to Fig. 1, the above-mentioned electric motor assembly 10 that has encoder comprises that further one is connected to the circuit board 22 of encoder 18 and comprises the output signal cable 42 of a holding wire 38 and a shield member 40 and the shell 12 that shield member 40 with output signal cable 42 is electrically connected to motor is used for the earthing mechanism 44 of ground connection purpose.Above-mentioned output signal cable 42 is used for exporting from detection signal of 24 to external control circuit (not shown) transmission of testing circuit of encoder 18 by holding wire 38.Shield member 40 that be made of metal in the sheath 46 and that have a linearity, network or a film shape is used for around above-mentioned holding wire 38 (seeing Fig. 8 A and 8B), and is used for reducing detection signal transmission The noise.In the above-mentioned electric motor assembly 10 that has an encoder, the electric power that power line 48 is used to above-mentioned motor 14 is supplied with.
Shown in Fig. 3 A and 3B, above-mentioned earthing mechanism 44 comprises a conductor 50 that is patterned on the circuit board 22, first syndeton 52 that reciprocally connects above-mentioned conductor 50 to above-mentioned shield member 40 is with second syndeton 54 that reciprocally is connected above-mentioned conductor 50 to said frame member 20.The shield member 40 that above-mentioned earthing mechanism 44 is used to keep above-mentioned output signal cable 42 and above-mentioned motor casing 12 are at an identical current potential (or an earth potential).For this purpose, the framing component 20 of above-mentioned motor casing 12 and above-mentioned encoder 18 uses good electric conduction material to be made in its part that interconnects separately at least.Further, said frame member 20, be also referred to as encoder flange (or flange pedestal), the a large amount of retaining element 56 that is used as metallic screw is fixedly connected to above-mentioned motor casing 12, to such an extent as to guarantee the conductivity condition (or earth potential) of motor casing 12 and framing component 20.In this respect, above-mentioned motor casing 12 comes ground connection by an earth lead, or the like (not shown).
The conductor 50 of above-mentioned earthing mechanism 44 is formed in the predetermined pattern on circuit board 22 surfaces so that extend in first syndeton 52 and second syndeton 54, it is characterized by the lead composition of the testing circuit 24 of encoder 18, use for example known printed circuit board manufacturing process.First connector 58 that first syndeton 52 comprises a conductor 50 that is used to connect above-mentioned testing circuit 24 and foregoing circuit plate 22 and second connector 60 that is used to be connected the shield member 40 of holding wire 38 and output signal cable 42, above-mentioned first connector 58 and above-mentioned second connector 60 can intercouple.In the embodiment of above-mentioned explanation, above-mentioned first connector 58 is one and is fixed on foregoing circuit plate 22 lip-deep connector for substrate, and a terminal (not shown) of above-mentioned first connector is connected to an end of above-mentioned conductor 50.On the other hand, above-mentioned second connector 60 terminal (not shown) is connected to shield member 40 as a cable connector.When above-mentioned first and second connectors 58,60 intercoupled together, the terminal of connector that is connected to the front of above-mentioned conductor 50 was connected to the connector of the back that connects above-mentioned shield member 40.
Shown in Fig. 4 A and 4B, above-mentioned second syndeton 54 comprises a retaining element 66 that is located in the through hole 64 that the via metal coating 62 that will be connected to conductor 50 in the circuit board 22 and insertion have via metal coating 62.Above-mentioned via metal coating 62 integrally provides, have a cylindrical shape part 62a and a pair of face portion 62b, wherein above-mentioned cylindrical shape part 62a extends the total inner surface that covering penetrates the through hole 64 between foregoing circuit plate 22 relative two surfaces, and extend above-mentioned face portion 62b periphery along the opposite end opening of through hole 64 on the facing surfaces of circuit board 22, and a face portion 62b is connected to above-mentioned conductor 50.The above-mentioned retaining element 66 that for example is made of metallic screw has and the identical structure of a plurality of retaining elements 68 that is used for circuit board 22 is fastened to framing component 20.
Therefore, for example, when above-mentioned retaining element 66 with external screw thread 66a was inserted into through hole 64 and be tightened among the internal thread 20a that framing component 20 forms, circuit board 22 just was secured to said frame member 20, and meanwhile via metal coating 62 forms conduction with framing component 20 and contacts.Like this, above-mentioned conductor 50 and said frame member 20 just are electrically connected to together by via metal coating 62.Therefore, the shield member 40 that is connected to the output signal cable 42 of conductor 50 by above-mentioned first syndeton 52 has been electrically connected to the framing component 20 that is connected to the encoder 18 of conductor 50 by above-mentioned second syndeton 54.In this respect, the same as has been described, said frame member 20 is attached to motor casing 12 by mutual electrical connection, like this ground connection firmly with regard to making shield member 40 be electrically connected to motor casing 12.
It should be noted that to have a pair of face portion 62b in the structure of described via metal coating 62, said fixing element 66 is made by a kind of insulating material, for example can use resin.On the other hand, if retaining element 66 is to be made by good electric conduction material, for example use metal, the ground connection performance of second syndeton 54 will significantly improve so.Equally, if via metal coating 62 does not have above-mentioned face portion 62b, if perhaps do not adopt the through hole of electroplating, it is effectively using good electric conduction material to make conduction retaining element 66 so, therefore when retaining element 66 was fixed on the framing component 20, conductor 50 formed conduction at its end with retaining element 66 and contacts.
Can be understood from above, according to above-mentioned earthing mechanism 44, in the assembling process of above-mentioned encoder 18, connect above-mentioned output signal cable 42 in the step of foregoing circuit plate 22, when holding wire 38 also was connected to testing circuit 24, it was possible connecting above-mentioned shield member 40 and above-mentioned conductor 50 simultaneously.Equally, foregoing circuit plate 22 is being fastened in the step of said frame member 20, the retaining element 66,68 that has same structure by use also is possible with conductor 50 and framing component 20 electrical connections.Therefore, in the electric motor assembly 10 that has encoder, when not needing the complex operations of the attended operation as the connection lead outside the ground connection purpose is provided, can be easily between the shell 12 of the shield member 40 of above-mentioned output signal cable 42 and above-mentioned motor 14, set up and be electrically connected.Therefore,, can simplify the attended operation of output signal cable 42 and reduce its operating cost, thereby make it possible to reduce effectively assembling and make the expense of said modules 10 and the quantity of step according to the above-mentioned electric motor assembly 10 that has encoder.Should be noted that also to have an advantage, eliminated wherein as torn the crust 46 of above-mentioned output signal cable 42 and expose the process of the cut cable of above-mentioned shield member 20, thereby improved the water resistance of cable segment connector.
Although in the above-described embodiments, in order to connect above-mentioned conductor 50 to framing component 20, Fig. 4 A is used to be connected above-mentioned second syndeton 54 with the above-mentioned via metal coating 62 shown in the 4B, therefore can adopt alternate manner.For example, shown in Fig. 5 A and 5B, above-mentioned second syndeton 54 can comprise one on circuit board 22, be used to connect above-mentioned conductor 50 and one be electrically connected above-mentioned 70 Connection Element 66 to said frame member 20 ' face 70.In the present embodiment, wherein in foregoing circuit plate 22, form a no coat of metal through hole 72 and penetrate above-mentioned facing surfaces, above-mentioned face 70 extends annularly at the edge of an openend of the above-mentioned no coat of metal through hole 72 in foregoing circuit plate 22 upper edges, and patterned face 70 is connected to above-mentioned conductor 50.The above-mentioned Connection Element made from good electric conducting material 66 of conduction retaining element 66 ' formation ', conduction retaining element 66 ' identical structure is arranged with said fixing element 68 (Fig. 3 A).
Therefore, for example, when having the above-mentioned no coat of metal through hole 72 of externally threaded above-mentioned conduction retaining element 66 ' insertion and be rotated into the internal thread 20a that in framing component 20, forms, foregoing circuit plate 22 is fastened to said frame member 20, meanwhile, said fixing element 66 ' top 66b and face 70 form conduction and contact.Therefore, above-mentioned conductor 50 and said frame member 20 are by face 70 and above-mentioned conduction retaining element 66 ' be electrically connected mutually.Thereby the shield member 40 of above-mentioned output signal cable 42 is connected to above-mentioned conductor 50 through above-mentioned first syndeton 52, and shield member 40 is electrically connected to the framing component 20 of above-mentioned encoder 18.At this on the one hand, under the above-mentioned condition that both are electrically connected mutually, the above-mentioned framing component 20 of stating is attached on the above-mentioned motor casing 12, as described, as such result, above-mentioned shield member 40 is electrically connected to above-mentioned motor casing 20 so that stable ground connection.
Perhaps, as shown in Fig. 6 A and Fig. 6 B, above-mentioned second syndeton 54 can comprise the retaining element 66 of fastening foregoing circuit plate 22 to the said frame member 20, can make above-mentioned conductor 50 produce conduction with said frame member 20 and contact.In the present embodiment, wherein in foregoing circuit plate 22, form a no coat of metal through hole 72 by penetrating above-mentioned facing surfaces, patterned above-mentioned conductor 50 extends to the rear surface of foregoing circuit plate 22 from first connector 58 (Fig. 3 B), so that the end of above-mentioned conductor is closely near the edge of opening of above-mentioned no coat of metal through hole 72.In this respect, the above-mentioned conductor made from the manufacturing technology of printed circuit board (PCB) 50 covers with a protective layer usually, consequently must remove the above-mentioned protective layer on the desired length 50a of above-mentioned conductor ends in advance.
Therefore, for example, when above-mentioned retaining element 66 with external screw thread 66a inserts no coat of metal through hole 72 and be rotated into the internal thread 20a that forms in framing component 20, foregoing circuit plate 22 is fastened to said frame member 20, meanwhile, the conductor on the rear surface of foregoing circuit plate 22 50 forms and directly electrically contacts and be electrically connected to said frame 20.Therefore, the shield member 40 of above-mentioned output signal cable 42 is connected to above-mentioned conductor 50 through above-mentioned first syndeton 52, above-mentioned shield member 40 is electrically connected to the framing component 20 of above-mentioned encoder 18, and the said frame member is electrically connected to above-mentioned conductor 50 through above-mentioned second syndeton 54.At this on the one hand, said frame member 20 is attached on the above-mentioned motor casing 12, and above-mentioned like this both are electrically connected mutually, as described, as such result, above-mentioned shield member 40 is electrically connected to above-mentioned motor casing 20 so that stable ground connection.
Further, interconnecting the conductor 50 on the foregoing circuit plate 22 and the shield member 40 of above-mentioned output signal cable 42 as above-mentioned first syndeton 52, the system except the foregoing description also can adopt.For example, shown in Fig. 7 A and 7B,, can adopt attached to the aerial lug 74 on the encoder lid 26 of sealing foregoing circuit plate 22 as first connector of above-mentioned first syndeton 52.Said external connector 74 provides a plurality of terminals 76 for output signal, and above-mentioned terminal 76 is connected by the respective terminal (not shown) of an inside cable 78 and connector for substrate 80.On circuit board 22, a terminal (not shown) of connector for substrate 80 is connected to conductor 50 (Fig. 3 A), and said external connector 74 terminal 76 is electrically connected to above-mentioned conductor 50 thus.On the other hand, 76, one terminal holes of terminal that are connected to second connector 60 of above-mentioned output signal cable 42 and provide a plurality of terminal hole (not shown) to be separately connected to said external connector 74 are connected to above-mentioned shield member 40 (Fig. 8 A).When said external connector 74 and above-mentioned second connector 60 were coupled fully, the terminal 76 of the previous connector of above-mentioned bonding conductor 50 was connected to the terminal hole of a back connector of above-mentioned connection shield member 40.Shield member 40 ground connection (promptly idiostatic with above-mentioned motor casing 12) of above-mentioned output signal cable 42 are also guaranteed in the combination of recognizing first syndeton 52 with this device and above-mentioned conductor 50 and second syndeton 54.
In having first syndeton 52 of said apparatus, can adopt other structure, be the said external connector and second connector 74,60 conductive shell is assigned with an earth connection, replace above-mentioned structure, i.e. a terminal assignment earth connection of said external connector 74 terminal 76 and above-mentioned second connector 60.In this structure, outside (or first) connector 74 comprises the first conductive shell 74a that is made by the good electric conducting material resemble the metal, and the above-mentioned first conductive shell 74a is connected to the respective terminal of above-mentioned connector for substrate 80 by above-mentioned inside cable 78, and above-mentioned terminal is connected to the conductor 50 (Fig. 3 A) on the foregoing circuit plate 22 successively.Therefore, the first conductive shell 74a of said external connector 74 electrically is connected to above-mentioned conductor 50.On the other hand, above-mentioned second connector 60 comprises the second conductive shell 60a that the good electric conducting material resemble the metal is made, and above-mentioned conductive shell is connected to above-mentioned shield member 40 (Fig. 8 A).When said external connector 74 and above-mentioned second connector 60 fully are coupled, connect the first conductive shell 74a of previous connector of above-mentioned conductor 50 and the second conductive shell 60a of a back connector that is connected above-mentioned shield member 40 and be coupled conductively.Shield member 40 ground connection (promptly idiostatic with above-mentioned motor casing 12) of above-mentioned output signal cable 42 are also guaranteed in the combination of recognizing first syndeton 52 that has this device and above-mentioned conductor 50 and second syndeton 54.
Though have the invention that relates to first-selected embodiment by disclosure and description at length, the technical staff in affiliated territory understands the spirit that do not deviate from following claim and the various variations and the change of category.
Claims (11)
1. an electric motor assembly that has encoder comprises: a motor casing; An encoder, it comprise one with electrically conducting manner attached to the framing component on the above-mentioned motor casing, a circuit board and a testing circuit that in the foregoing circuit plate, provides that is supported on the said frame member; On foregoing circuit plate that is connected to above-mentioned encoder and comprise the output signal cable of a holding wire and a shield member; With one be used for the ground connection purpose the above-mentioned shield member of above-mentioned output signal cable be connected electrically to earthing mechanism on the above-mentioned motor casing; Wherein: above-mentioned earthing mechanism comprises that is wanted a patterned conductor on the foregoing circuit plate, one interconnect above-mentioned conductor to the above-mentioned shield member first syndeton and one interconnect second syndeton of above-mentioned conductor to the said frame member.
2. the electric motor assembly that has encoder as claimed in claim 1, it is characterized in that: above-mentioned first syndeton comprises that an above-mentioned testing circuit that is connected to the foregoing circuit plate and first connector on the above-mentioned conductor and one are connected to the above-mentioned holding wire of above-mentioned output signal cable and second connector on the above-mentioned shield member, and above-mentioned first connector and above-mentioned second connector can intercouple.
3. the electric motor assembly that has encoder as claimed in claim 2 is characterized in that: above-mentioned first connector is a connector for substrate that is fixed on the foregoing circuit plate.
4. the electric motor assembly that has encoder as claimed in claim 2, it is characterized in that: above-mentioned first connector comprises first conductive shell that is connected on the above-mentioned conductor, above-mentioned second connector comprises second conductive shell that is connected on the above-mentioned shield member, and above-mentioned second conductive shell and above-mentioned first conductive shell can be coupled.
5. the electric motor assembly that has encoder as claimed in claim 4 is characterized in that: above-mentioned first connector is an aerial lug that covers attached to the encoder of sealing foregoing circuit plate.
6. the electric motor assembly that has encoder as claimed in claim 1, it is characterized in that: above-mentioned second syndeton comprise one in described circuit board, provide to be connected to via metal coating on the above-mentioned conductor, above-mentioned via metal coating and said frame member form and electrically contact.
7. the electric motor assembly that has encoder as claimed in claim 6 is characterized in that: above-mentioned second syndeton comprises that further an insertion has in the through hole of above-mentioned via metal coating and the retaining element of fastening foregoing circuit plate to the said frame member.
8. the electric motor assembly that has encoder as claimed in claim 1 is characterized in that: above-mentioned second syndeton comprises that one is provided at the face that will be connected to above-mentioned conductor on the foregoing circuit plate and electrically is connected above-mentioned the Connection Element to the said frame member with one.
9. the electric motor assembly that has encoder as claimed in claim 8 is characterized in that: above-mentioned Connection Element comprises that a fastening foregoing circuit plate forms the conduction retaining element that conduction contacts with above-mentioned simultaneously to the said frame member.
10. the electric motor assembly that has encoder as claimed in claim 1 is characterized in that: above-mentioned second syndeton comprise a fastening foregoing circuit plate to the said frame member simultaneously with the conduction retaining element of above-mentioned conductor conduction.
11. the electric motor assembly that has encoder as claimed in claim 1, it is characterized in that: above-mentioned second syndeton comprises that one produces under the condition that conduction contacts above-mentioned conductor and said frame member, the retaining element of fastening foregoing circuit plate to the said frame member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003032877 | 2003-02-10 | ||
| JP032877/2003 | 2003-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1531170A CN1531170A (en) | 2004-09-22 |
| CN100367635C true CN100367635C (en) | 2008-02-06 |
Family
ID=32653050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100048651A Expired - Lifetime CN100367635C (en) | 2003-02-10 | 2004-02-10 | Motor with coder |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7011554B2 (en) |
| EP (1) | EP1445835B1 (en) |
| CN (1) | CN100367635C (en) |
| DE (1) | DE602004011693T2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217571A (en) * | 2017-07-06 | 2019-01-15 | 日本电产三协株式会社 | The connection method of motor and encoder cable |
| CN109327115A (en) * | 2017-07-31 | 2019-02-12 | 日本电产三协株式会社 | Motor |
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| DE102005062709B4 (en) * | 2005-12-28 | 2009-04-23 | Amphenol-Tuchel Electronics Gmbh | Electrical connection |
| JP4489133B2 (en) * | 2008-09-10 | 2010-06-23 | 株式会社東芝 | Printed wiring boards, electronic devices |
| US10476354B2 (en) | 2011-09-16 | 2019-11-12 | Persimmon Technologies Corp. | Robot drive with isolated optical encoder |
| CN105703542B (en) | 2011-09-16 | 2019-11-19 | 柿子技术公司 | Robot driver with passive rotor |
| DE102012213916A1 (en) * | 2011-11-08 | 2013-05-08 | Robert Bosch Gmbh | Electronic module for a control unit |
| JP5821109B2 (en) * | 2013-06-17 | 2015-11-24 | 株式会社安川電機 | Motor with encoder |
| DE102014225228A1 (en) * | 2014-12-09 | 2016-06-09 | Robert Bosch Gmbh | Electric machine with a potential equalization device |
| CN107356274B (en) * | 2015-01-09 | 2019-11-05 | 杭州谷立电气技术有限公司 | The method for carrying out motor positioning using coder structure |
| JP6177842B2 (en) | 2015-07-31 | 2017-08-09 | ファナック株式会社 | Machine learning method and machine learning device for learning connection point of ground wire or shield wire, motor control device and motor device provided with machine learning device |
| KR20220134041A (en) * | 2016-03-21 | 2022-10-05 | 퍼시몬 테크놀로지스 코포레이션 | Robot drive with isolated optical encoder |
| CN106451899B (en) * | 2016-12-07 | 2018-11-09 | 深圳市泰士特科技股份有限公司 | Generating set signal draws switching device |
| JP6412176B2 (en) * | 2017-01-11 | 2018-10-24 | ファナック株式会社 | Electric motor |
| CN113451791B (en) * | 2021-05-22 | 2024-01-05 | 深圳市越疆科技股份有限公司 | Connection structure, electronic skin, shell and mechanical arm of detection circuit board and electrode |
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| CN109327115A (en) * | 2017-07-31 | 2019-02-12 | 日本电产三协株式会社 | Motor |
| CN109327115B (en) * | 2017-07-31 | 2021-08-06 | 日本电产三协株式会社 | Electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1445835B1 (en) | 2008-02-13 |
| DE602004011693T2 (en) | 2009-01-29 |
| US20040157502A1 (en) | 2004-08-12 |
| EP1445835A3 (en) | 2006-01-11 |
| CN1531170A (en) | 2004-09-22 |
| DE602004011693D1 (en) | 2008-03-27 |
| US7011554B2 (en) | 2006-03-14 |
| EP1445835A2 (en) | 2004-08-11 |
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Granted publication date: 20080206 |